Question

Calculate how many milliliters of 0.100 M HCl solution is needed
to make a pH 4.34 solution with 2,2'-bipyridine, to 100.0 ml of
10.0 X 10^{-3} M of 2,2'-bipyridine.

Answer #1

Calculate how many milliliters of 1 M NaOH will be needed to
make 1 L of 0.1 M solution.
Calculate how many grams of potassium acid phthalate (KHP, FW =
204.2 g/mol) will react with about 25 ml of the 0.1 M NaOH
solution. The reaction is as follows:
HKC8H4O4 + NaOH ā H2O + NaKC8H4O4
Calculate how many mL of 1 M HCl is needed to make 1 L of 0.2 M
HCl.
HCl + NaOH ā H2O +...

how many milliliters of 0.15 M HCl are needed to titrate to the
end point 100.0 mL of a solution that contains 2.35g of NaOH per
liter?

How many milliliters of 5.5 M HCl solution are needed
to obtain 0.14 mol of HCl?
Express the volume in milliliters to two significant digits
How many moles of KBr are present in 140. mL of a 0.128
M solution?
Express the amount in moles to three significant digits.

How many milliliters of a 0.221 M HCl solution are needed to
neutralize 299 mL of a 0.0459 M Ba(OH)2 solution?

How many milliliters of a .193 M HCl solution are needed to
neutralize 221 mL of a 0.0351 M Ba(OH)2 solution?

a) Calculate the change in pH when 8.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq).
b) Calculate the change in pH when 8.00 mL of 0.100 M NaOH(aq)
is added to the original buffer solution.

Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq)
Change in pH = _____
Calculate the change in pH when 5.00 mL of 0.100 M NaOH(aq) is
added to the original buffer solution.
Change in pH= _______

(a) How many milliliters of 0.165 M HCl are needed to
neutralize completely 35.0 mL of 0.101 M
Ba(OH)2 solution?
________ ml
(b) How many milliliters of 2.50 M
H2SO4 are needed to neutralize 50.0 g of
NaOH?
_________ mL
(c) If 56.8 mL of BaCl2 solution is needed to
precipitate all the sulfate in a 544 mg sample of
Na2SO4 (forming BaSO4), what is
the molarity of the solution?
_________M
(d) If 47.5 mL of 0.250 M HCl solution...

Calculate the change in pH when 3.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq). A list of ionization constants can be
found here.
pH= ?
Calculate the change in pH when 3.00 mL of 0.100 M NaOH(aq) is
added to the original buffer solution.
pH=?

1) Calculate the change in pH when 3.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq). 2) Calculate the change in pH when 3.00
mL of 0.100 M NaOH(aq) is added to the original buffer solution.

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